Home / 131,616.48-181,630.78-74,267.96

Finding the Fourth Proportional to 131,616.48, 181,630.78 and 74,267.96

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Solution

The fourth proportional to 131,616.48, 181,630.78 and 74,267.96 is: 102,489.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,616.48 : 181,630.78 = 74,267.96 : x
  2. Step 2: Convert to fraction form
    131,616.48/181,630.78 = 74,267.96/x
  3. Step 3: Cross multiply
    131,616.48x = 181,630.78 × 74,267.96
  4. Step 4: Simplify right side
    131,616.48x = 13,489,346,767.00
  5. Step 5: Solve for x
    x = 13,489,346,767.00/131,616.48
  6. Step 6: Final answer
    x = 102,489.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.